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Pipe diameters

I know this is slightly anorakey but I want to change the piping under the hood.

 

Can anyone tell me what the internal diameter for the vacuum hosing and petrol piping is.

 

I thing the vacuum pipes are 4mm but not sure due to wear and tear. Not sure what the petrol pipes are at all.

 

I think it's time for a bit of braiding and silicon!!!:D :D :D

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    Fuel lines are 7.9mm and most guys seem to buy 4mm and 6mm vacumm tubing, around 2metres of each does virtually all lines you can see.

    smithy :cool:

     

    Oh if yer interested, i do the fuel line full kits anyway, these do away with ALL stock rubber and metal lines across the plenum.

    just check out my section in traders,

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